1. 4+N Multi-functional Modes: Four preset inflation modes for bicycles, motorcycles, cars, and sports balls. The free mode lets you set the target pressure from 3 to 150 psi. Simple to use for daily inflation tasks and travel ready. 2. Versatile and Portable: Cordless air compressor that inflates car, motorcycle, and bicycle tires, and also serves as a power bank with a Type-C charging port and a 5V/2A USB output. Includes an LED light for nighttime use, making it a practical companion for outdoor adventures and roadside emergencies. 3. User-Friendly Technology: Precise LCD tire pressure gauge with four units (Psi, KPa, Bar, Kg/Cm2). Clear LCD display shows both preset values and real-time tire pressure for easy monitoring and optimal performance and safety. 4. Extended Battery Life: 8000mAh rechargeable battery powers up to 10-12 car tires per charge. Fully charged in 4-6 hours, reducing the need for frequent recharging and providing reliability in emergencies. Applications and scenarios: - Road trip prep: check and set car tire pressures before departure to ensure safety and efficiency. - Roadside or outdoor use: quickly inflate tires or inflate bicycles and sports balls, plus charge a device with the USB output if needed. - Nighttime or low-light situations: use the built-in LED light for visibility during maintenance.